FlightGear

The Flight Gear Flight Simulator project is a free, open-source, multi-platform, cooperative flight sim development project. Source code for the entire project is available and licensed under the GPL. The Flight Gear project is working to create a sophisticated flight simulator framework for the development and pursuit of interesting flight simulator ideas. We are developing a good basic sim that can be expanded and improved upon by anyone interested in contributing.

Recent releases

Release Notes: This release improves interaction with airfield layouts for "manual" and AI traffic, uses more realistic cloud rendering, gives the launcher a nicer look and more features, makes CMake the official build system, gives a nicer visual appearance to ground features, and adds a lot of bugfixes and general improvements.

Release Notes: This version reflects the maturation of the OpenSceneGraph port that started with the previous 1.9.0 release. In addition to many internal code improvements, this version marks the introduction of many improvements in the graphics and sound system, as well as improved usability of key features and improved behavior of exsisting features. Highlights of this version include: dramatic 3D clouds, dramatic lighting conditions, improved support for custom scenery, and many many new and detailed aircraft models.

Release Notes: Major realism improvements were made in the
helicopter Flight Model. Gliding with winch
launching and aerotowing (YASim) was improved.
Support for water planes was added. Multiplayer
chat (text and voice) was added. The tutorial
system was improved. Viewpoints were improved,
including a fly-by view and a dynamic cockpit
view. Interactive/scripted control of AI aircraft
was added. TACAN was added for easier air-to-air
refueling. KC135 can be AI or flown by a player on
the Multi-Play servers. Many new and improved
aircraft are available.